improve mcp context initialization

mcp/selectMode.ts

@@ -1,20 +1,6 @@
 import { type } from "arktype";
-import type { Mode } from "../modes.ts";
 import { contextualize, tool } from "./shared.ts";
 
-// Get modes from environment variable (set by createMcpConfigs)
-function getModes(): Mode[] {
-  const modesJson = process.env.PULLFROG_MODES;
-  if (modesJson) {
-    try {
-      return JSON.parse(modesJson);
-    } catch {
-      return [];
-    }
-  }
-  return [];
-}
-
 export const SelectMode = type({
   modeName: type.string.describe(
     "the name of the mode to select (e.g., 'Plan', 'Build', 'Review', 'Prompt')"
@@ -26,23 +12,14 @@ export const SelectModeTool = tool({
   description:
     "Select a mode and get its detailed prompt instructions. Call this first to determine which mode to use based on the request.",
   parameters: SelectMode,
-  execute: contextualize(async ({ modeName }) => {
-    const allModes = getModes();
-
-    if (allModes.length === 0) {
-      return {
-        error:
-          "No modes available. Modes must be provided via PULLFROG_MODES environment variable.",
-      };
-    }
-
-    const selectedMode = allModes.find((m) => m.name.toLowerCase() === modeName.toLowerCase());
+  execute: contextualize(async ({ modeName }, ctx) => {
+    const selectedMode = ctx.modes.find((m) => m.name.toLowerCase() === modeName.toLowerCase());
 
     if (!selectedMode) {
-      const availableModes = allModes.map((m) => m.name).join(", ");
+      const availableModes = ctx.modes.map((m) => m.name).join(", ");
       return {
         error: `Mode "${modeName}" not found. Available modes: ${availableModes}`,
-        availableModes: allModes.map((m) => ({ name: m.name, description: m.description })),
+        availableModes: ctx.modes.map((m) => ({ name: m.name, description: m.description })),
       };
     }